人工晶体学报2024，Vol.53Issue(10)：1688-1698,11.
水平定向结晶法生长浓度渐变Yb∶YAG激光晶体及光谱性能研究
Spectral Properties of Concentration Gradient Yb∶YAG Laser Crystals Grown by Horizontal Directional Crystallization Method
丁雨憧 1张灵 1李海林 1张月 1唐杨 2强铭 3林辉2
作者信息
- 1. 中国电子科技集团公司第二十六研究所,重庆 400060||中电科芯片技术(集团)有限公司,重庆 400060
- 2. 上海理工大学光电信息与计算机工程学院,上海 200093
- 3. 中国科学院上海光学精密机械研究所,上海 201800
- 折叠
摘要
Abstract
A concentration gradient Yb∶YAG laser crystal with a size of 180 mm × 81 mm × 16 mm was grown by horizontal directional crystallization(HDC)method.Four crystal pieces with the size of 40 mm ×40 mm ×7 mm and 70 mm ×70 mm × 7 mm(two pieces for each size)were taken from the shoulders and tails of the single crystal plate,respectively.A 632 nm laser and a polarizing stress meter was used to characterize the samples'optical properties.From the results,it can be seen that compared to the crystals near the crucible,the crystals near the surface are more transparent,with no scattering light path,and showing lower and more uniform stress.The crystal was also subjected to absorption spectra measurement,and its absorption coefficient at 935 nm wavelength was used to calculate the doping concentration of Yb3+at different positions in the crystal.It was found that the Yb3+doping concentration in laser crystal plates with a size of 40 mm × 40 mm × 7 mm gradually increased along the crystal growth direction,with a concentration gradient of approximately 0.42％/cm.The Yb3+doping concentration in laser crystal plate with a size of 70 mm × 70 mm × 7 mm remains almost unchanged,which is approximately 4.50％.关键词
浓度渐变/光谱性能/Yb∶YAG/水平定向结晶法/激光晶体Key words
concentration gradient/spectral property/Yb∶YAG/horizontal directional crystallization method/laser crystal分类
数理科学引用本文复制引用
丁雨憧,张灵,李海林,张月,唐杨,强铭,林辉..水平定向结晶法生长浓度渐变Yb∶YAG激光晶体及光谱性能研究[J].人工晶体学报,2024,53(10):1688-1698,11.
